rameeshm commented on a change in pull request #636: HIVE-21753: Update HiveMetastore authorization to enable use of HiveA… URL: https://github.com/apache/hive/pull/636#discussion_r287173432
########## File path: ql/src/java/org/apache/hadoop/hive/ql/security/authorization/plugin/metastore/HiveMetaStoreAuthorizer.java ########## @@ -0,0 +1,234 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.hadoop.hive.ql.security.authorization.plugin.metastore; + +import org.apache.commons.lang.ArrayUtils; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hive.conf.HiveConf; +import org.apache.hadoop.hive.metastore.MetaStorePreEventListener; +import org.apache.hadoop.hive.metastore.api.InvalidOperationException; +import org.apache.hadoop.hive.metastore.api.MetaException; +import org.apache.hadoop.hive.metastore.api.NoSuchObjectException; +import org.apache.hadoop.hive.metastore.events.PreEventContext; +import org.apache.hadoop.hive.ql.metadata.HiveException; +import org.apache.hadoop.hive.ql.metadata.HiveUtils; +import org.apache.hadoop.hive.ql.security.HiveMetastoreAuthenticationProvider; +import org.apache.hadoop.hive.ql.security.authorization.plugin.metastore.events.*; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAuthorizer; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAuthorizerFactory; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAuthzContext; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAuthzSessionContext; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveMetastoreClientFactoryImpl; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveOperationType; +import org.apache.hadoop.hive.ql.security.authorization.plugin.HivePrivilegeObject; +import org.apache.hadoop.security.UserGroupInformation; + +import java.util.List; + +/** + * HiveMetaStoreAuthorizer : Do authorization checks on MetaStore Events in MetaStorePreEventListener + */ + +public class HiveMetaStoreAuthorizer extends MetaStorePreEventListener { + private static final Log LOG = LogFactory.getLog(HiveMetaStoreAuthorizer.class); + private static final String HIVE_SUPER_USERS = "hive.metastore.authorization.superusers"; + private static PreEventContext preEventContext = null; + + private String[] superUsers = null; + + private static final ThreadLocal<Configuration> tConfig = new ThreadLocal<Configuration>() { + @Override + protected Configuration initialValue() { + return new HiveConf(HiveMetaStoreAuthorizer.class); + } + }; + + private static final ThreadLocal<HiveMetastoreAuthenticationProvider> tAuthenticator = new ThreadLocal<HiveMetastoreAuthenticationProvider>() { + @Override + protected HiveMetastoreAuthenticationProvider initialValue() { + try { + return (HiveMetastoreAuthenticationProvider) HiveUtils.getAuthenticator(tConfig.get(), HiveConf.ConfVars.HIVE_METASTORE_AUTHENTICATOR_MANAGER); + } catch (HiveException excp) { + throw new IllegalStateException("Authentication provider instantiation failure", excp); + } + } + }; + + public static synchronized PreEventContext getPreEventContext() { + return preEventContext; + } + public HiveMetaStoreAuthorizer(Configuration config) { + super(config); + superUsers = config.getStrings(HIVE_SUPER_USERS); + } + + @Override + public final void onEvent(PreEventContext preEventContext) throws MetaException, NoSuchObjectException, InvalidOperationException { + if (LOG.isDebugEnabled()) { + LOG.debug("==> HiveMetaStoreAuthorizer.onEvent(): EventType=" + preEventContext.getEventType()); + } + + HiveMetaStoreAuthzInfo authzContext = buildAuthzContext(preEventContext); + + if (!skipAuthorization(authzContext)) { + try { + HiveConf hiveConf = new HiveConf(super.getConf(), HiveConf.class); + HiveAuthorizerFactory authorizerFactory = HiveUtils.getAuthorizerFactory(hiveConf, HiveConf.ConfVars.HIVE_AUTHORIZATION_MANAGER); + + if (authorizerFactory != null) { + HiveMetastoreAuthenticationProvider authenticator = tAuthenticator.get(); + + authenticator.setConf(hiveConf); + + HiveAuthzSessionContext.Builder authzContextBuilder = new HiveAuthzSessionContext.Builder(); + + authzContextBuilder.setClientType(HiveAuthzSessionContext.CLIENT_TYPE.HIVECLI); + authzContextBuilder.setSessionString("HiveMetaStore"); + + HiveAuthzSessionContext authzSessionContext = authzContextBuilder.build(); + + HiveAuthorizer hiveAuthorizer = authorizerFactory.createHiveAuthorizer(new HiveMetastoreClientFactoryImpl(), hiveConf, authenticator, authzSessionContext); + + authenticator.getUserName(); + + checkPrivileges(authzContext, hiveAuthorizer); + } + } catch (HiveException e) { + LOG.error("HiveMetaStoreAuthorizer.onEvent(): failed", e); + } + } + if (LOG.isDebugEnabled()) { + LOG.debug("<== HiveMetaStoreAuthorizer.onEvent(): EventType=" + preEventContext.getEventType()); + } + } + + + private HiveMetaStoreAuthzInfo buildAuthzContext(PreEventContext preEventContext) throws MetaException { + if (LOG.isDebugEnabled()) { + LOG.debug("==> HiveMetaStoreAuthorizer.buildAuthzContext(): EventType=" + preEventContext.getEventType()); + } + + HiveMetaStoreAuthorizableEvent authzEvent = null; + + if (preEventContext != null) { + this.preEventContext = preEventContext; + switch (preEventContext.getEventType()) { + case CREATE_DATABASE: Review comment: Comment 7 -> add/alter/drop schema -> All these commands will not be authorized for the users Comment 8 -> PreAuthorizationCallEvent -> All PreAuthorizationCallEvent call will not be authorized for the users. Comment 2 to 6 -> all these needs changes to HiveMetastore to fire the auth event and followed authorization changes. I shall address this in subsequent JIRA once this patch is completed and validated. This needs a signification change and verification for it. Comment 1 -> CREATE CATALOG / ALTER CATALOG / DROP CATALOG can be done as admin user which is already in place. Rest all users will not be authorized to do these operations. CREATE VIEW / ALTER VIEW / DROP VIEW - operations related to views will not authorized for the users. Only admin users are allowed to do. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
